The urge to smell ajax dish liquid/hand soap

Has this happened to anyone? I’m 29 weeks now and ever since I hit my 3rd trimester I’ve had this urge to smell Ajax dish liquid/hand soap. I have no intention to ingest it at all, I just like to take a few sniffs every now and then. I went to my last doctors appointment and said that I was a bit anemic. I looked it up and I think I have pica? I’ll try my best to stop smelling the soap and they prescribed some iron pills for me but has anyone felt like this or done this?